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← ScienceWhich risk increases when lithium-ion batteries experience overcharging?
A)Thermal runaway event initiates easily✓
B)Electrolyte crystallization reduces ion flow
C)Anode material reacts to form graphite
D)Separator membrane pores dramatically shrink
💡 Explanation
Thermal runaway risk increases because overcharging causes decomposition of the electrolyte, increasing internal resistance, resulting in heat generation via exothermic reactions; therefore a thermal runaway is promoted, rather than other degradations like electrolyte imbalances.
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